Here is a commission that I finished some time ago for a custom Christmas greeting card. This portrait of a house was done in watercolors on cold press paper.
As always, I worked from a photograph. Starting with a sketch, I refined the drawing and transferred it onto my watercolor block with tracing paper and graphite paper. I did an outline in ink, which is especially helpful for geometric objects like this, and then I went to work with the paints. Most of the piece was rendered in watercolors, but the stars and lights were added in afterwards with colored pencil. You can view this and other commissions in the commissions gallery on shaunart.net